120000221000000 has 392 divisors, whose sum is σ = 327930360562656. Its totient is φ = 43204000000000.

The previous prime is 120000220999993. The next prime is 120000221000003. The reversal of 120000221000000 is 122000021.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000221000003) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1110945995 + ... + 1111054005.

Almost surely, 2^{120000221000000} is an apocalyptic number.

120000221000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120000221000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163965180281328).

120000221000000 is an abundant number, since it is smaller than the sum of its proper divisors (207930139562656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120000221000000 is an equidigital number, since it uses as much as digits as its factorization.

120000221000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108165 (or 108130 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 120000221000000 its reverse (122000021), we get a palindrome (120000343000021).

The spelling of 120000221000000 in words is "one hundred twenty trillion, two hundred twenty-one million", and thus it is an aban number.